<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>04-CSS</title>
    <style>
        li {
            /*list-style-image: url("images/video.jpg");*/
            /*list-style-type: disc;
            list-style-position: outside;*/

            /*list-style: inside circle url("images/video.jpg");*/

            /*list-style-type: none;*/

            list-style: none;
        }
    </style>
</head>
<body>

<ul>
    <li>li1</li>
    <li>li2</li>
    <li>li3</li>
    <li>li4</li>
    <li>li5</li>
</ul>

</body>
</html>